It's been a while but I have been a bit busy and I was also not really in the mood for making an answer for the post I'm quoting until now.
What sort of human level are you even talking about at this point? Earlier you've said that you didn't mean something like average human level, so are you referring to a range of 10-B to 9-C or something like that? Or are you trying to establish a different sort of scaling for normal humans without demon slayer training in Kimetsu no Yaiba? We do know through a freshly turned Nezuko, the Temple Demon, the demons from the Final Selection and Sanemi's mother that even people that have recently turned into demons are much stronger and faster than most regular humans and Tanjiro with his potential shouldn't be inferior to that as a demon. There is also the fact that him merely having a Blood Demon Art is a significant indicator of his strength as a demon since demons only develop them once they've reached a certain level of strength. Well, we are talking about a matter that is serious in the sense that it would have serious consequences for Tanjiro's key as a demon, so that would need some serious discussion.
I agree that the timeframe isn't a large one but it still remains a fact that there aren't a lot of details for the Kakushi avoiding being hit by the attack and that this doesn't receive much focus with us not even seeing when the Kakushi began to move. That Kakushi wasn't even the primary target of the attack, so it's hard to tell exactly how much movement was needed for that in the first place. Human Nezuko doesn't really have much scaling, so I guess we would indeed presume that she isn't very strong or fast for an ordinary human unless we adopt some headcanon about her retaining some strength from her time as a demon which would require some mental gymnastics. So while we don't have much of an indication for Nezuko's strength and speed, it can indeed be considered as an anti-feat for Demon Tanjiro though I'd still argue that Tanjiro's performance against the weakened demon slayers puts him significantly above the Kakushi since there wouldn't be a point for them trying to fight him while the Kakushi stand back otherwise especially with him sending them flying into walls.
I'm pretty sure that you're the only one in this thread who got the idea of someone cutting themselves with their sword as part of a comedic scene in the middle of a battle which is pretty much unheard of as far as I'm aware compared to a nosebleed which is a pretty common element in a comedic scene like this in anime and manga, so I'm not sure why exactly you would get that idea instead. In the first place the blood is sprouting from one single point while a sword cut would result in a line from which blood begins flowing out unless it was a short contact with the sword tip that caused the wound. I'm also quite sure that the bonk sound effect is associated with a human body taking a hit and not wood and metal hitting each other.
I can understand the interpretation but phrasing the matter of the visual indicator in a general manner without much elaboration was still rather misleading. It didn't feel like as if you actually contemplated what I meant or was seeing since you neither explained what I might have mistaken as a visual indicator for Mitsuri crashing into the door nor asked what part of the panel made me think that.
The wooden door was positioned in an almost vertical manner compared to the ground. The recoil that would happen according to
Newton's third law combined with gravity pulling Mitsuri down would result in her bouncing back. The fact that she involuntarily bounced back is supported by her just falling down head first with a stunned expression with Iguro helping her back on her legs which wouldn't happen if Nakime didn't manage to do this by repelling Mitsuri's offensive. The sound effect and different angle of the door on the next page could be considered as an indicator for Nakime moving the door after summoning it, so it's presumably not just the initial impact that did this but my point still stands.
I agree in the sense that the scene isn't particularly detailed but I do believe that it's good enough to fulfill its intended purpose, so I don't have any issues with it.
The scaling aspect for bringing that scene up is indeed pretty irrelevant in my opinion and does not need any further discussion.
